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Feh.
Ok, this is my personal linux cheat sheet. I use it for Sifl at home and
Chester at work. Its specific to me and what I use it for. Hence - cheat
sheet. schwack is my personal linux bitch, so umm....a lot of this came
from him helping me. Thanks.
apache
IPchains
Ports
Permissions
Links
Network Stuff
|
|
| mv |
Move |
| mkdir |
Make Directory |
| ls |
list files |
| cd |
change directory |
| rm |
remove/delete
|
| -la |
long all |
| ./ |
current directory |
| ln -s |
link |
| pwd |
shows working directory |
|
| get out of vi |
esc :q! |
| get out of vi and
save |
esc :wq |
|
| untar |
tar -zxvf blah.tgz
./configure
make
make install
|
| show who is in ftp |
ftpwho |
| to spy |
ps aux | grep username |
| to get on undernet |
BitchX Sherrod us.undernet.org |
|
| Apache |
| /var/lib/apache/htdocs |
Contains all the html files
for the web, on sifl. |
|
| ipchains |
ipchains -A input
-s 0bf -d 0m -j ACCEPT |
| -s |
source |
| -d |
destination |
| -A |
appends a rule to
a chain |
| -j |
join
this crap to the following target |
|
There
are basically 3 destinations
that network traffic has [chains] |
like
if you ipchains -A input that says that anyting after that is applied to
inbound packets |
| input |
In the
machine |
| output |
out
of the machine |
| forward |
through
the machine |
|
| targets |
ACCEPT |
|
DENY |
| ipchains -A output
-p tcp --dport 80 -j DENY |
That would block
any web traffic (port 80) going OUT the interface -p for protocol [ie apache
would be down, no Dita pr0n] |
| ipchains -A output
-s 192.168.1.2 -d 24.31.120.69 -j DENY |
That rule is DENY -s olly -d
silf then
Windows couldn't connect to linux
but could olly still
get on the internet
DENY PACKETS DESTINED FOR 24.31.120.69
but when you request www.google.com.. thats not 24.31.120.69
so it only applies to request to that ip
olly's gateway is the other nic of sifl, the 192.168.1.1
|
| ipchains -A input
-d 24.31.120.69 -p tcp --dport 22 -j DENY |
sifl denies ssh traffic coming
in
|
|
| Network
stuff |
| nmap commands |
|
| -sS |
syn scan instead
of a tcp scan |
| -O |
OS |
Ex: nmap -sS -O 192.168.0.1
|
|
| nmap www.rock.com
> somfile.txt |
> pipes the
output of commands to a file |
| nmap www.rock.com
> existing.txt |
>> pipes the
output to an existing file |
| | pipes the output
to another command |
|
| cat somelog | grep
sherrod |
that would send
the cat to grep.. to filger for sherrod |
|
| Ports |
|
| 80 |
web |
| 21 |
ftp |
| 22 |
ssh |
| 25 |
incoming
mail SMTP |
| 110 |
outgoing
mail (pop) |
| 119 |
newsgroups |
| 137-139 |
microsoft
network crap |
|
| Permissions |
|
| you can see the
owner from ls -l |
|
| 2 |
write, delete |
| 1 |
execute |
| 7 |
read, write, delete,
and execute |
| rwxrwxrwx |
The
first group is what the owner can do
The second group is for users in the GROUP the file belongs to
The third groups is for everybody else |
|
|
|
|
| for happy fun |
0bf |